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Title:
NIFEDIPINE-METOPROLOL SUSTAINED-RELEASE COMPOSITION, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/247952
Kind Code:
A1
Abstract:
Disclosed are a nifedipine-metoprolol sustained-release composition, a preparation method therefor and the use thereof. The sustained-release composition overcomes the huge differences in the solubility of the two drugs of nifedipine, a pharmaceutically acceptable salt or solvate thereof, and metoprolol, a pharmaceutically acceptable salt or solvate thereof, the two antihypertensive drugs with complementary action mechanisms are prepared into a daily long-acting compound preparation by means of a single-chamber double-layer osmotic pump drug release mechanism, so that the two drugs achieve long-acting synchronous release, and the 24-hour cumulative release degree of the two drugs can reach at least 85%. The sustained-release composition has a stable preparation process, convenience in terms of production and a conduciveness to industrial production.

Inventors:
GUO ZHEN (CN)
CHEN LINA (CN)
CHEN ZUYOU (CN)
CHENG MINGXUAN (CN)
XIE WENFENG (CN)
WANG TINGTING (CN)
YING SHUHUAN (CN)
Application Number:
PCT/CN2022/095871
Publication Date:
December 01, 2022
Filing Date:
May 30, 2022
Export Citation:
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Assignee:
SHANGHAI BOCIMED PHARMACEUTICAL CO LTD (CN)
International Classes:
A61K31/4422; A61K9/22; A61K9/30; A61K9/36; A61K9/44; A61K31/138; A61P9/12
Foreign References:
US4327725A1982-05-04
US4765989A1988-08-23
US5082668A1992-01-21
US5422123A1995-06-06
Other References:
KUMARAVELRAJAN, R. ; NARAYANAN, N. ; SUBA, V. ; BHASKAR, K.: "Simultaneous delivery of Nifedipine and Metoprolol tartarate using sandwiched osmotic pump tablet system", INTERNATIONAL JOURNAL OF PHARMACEUTICS, ELSEVIER, NL, vol. 399, no. 1-2, 31 October 2010 (2010-10-31), NL , pages 60 - 70, XP027298455, ISSN: 0378-5173
ZHAO SHIQING, ET AL.: "Synchronous delivery of felodipine and metoprolol tartrate using monolithic osmotic pump technology", DRUG DEVELOPMENT AND INDUSTRIAL PHARMACY, vol. 42, no. 11, 13 April 2016 (2016-04-13), pages 1723 - 1731, XP093007077, DOI: 10.3109/03639045.2016.1171332
RAJAGOPAL KUMARAVELRAJAN;NALLAPERUMAL NARAYANAN;VENKATESAN SUBA: "Development and evaluation of controlled porosity osmotic pump for Nifedipine and Metoprolol combination", LIPIDS IN HEALTH AND DISEASE, BIOMED CENTRAL, LONDON, GB, vol. 10, no. 1, 11 April 2011 (2011-04-11), GB , pages 51, XP021097880, ISSN: 1476-511X, DOI: 10.1186/1476-511X-10-51
KUMARAVELRAJAN RAJAGOPAL, NARAYANAN NALLAPERUMAL, SUBA VENKATESAN: "Development and Evaluation of Elementary Osmotic Pump for the Simultaneous Delivery of Nifedipine and Metoprolol Tartrate INTRODUCTION", ASIAN JOURNAL OF PHARMACEUTICS, vol. 10, no. 4, 31 December 2016 (2016-12-31), XP093007071
Attorney, Agent or Firm:
BEIJING ORIGINTELLIGENCE IP LAW FIRM (CN)
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